# Using:
# 'du' with -S for not including size of subdirectories,
# and -h is to see on human-readable form (changing bytes to gb or mb);
#
# 'sort' with -n for indexing comparing numerical string values
# and -r to reverse the order of the sort;
#
# 'more' to see the output in parts.
du -Sh | sort -n -r | more